93cdc8bbc2
With this patch apollolake uses the common PMC util code.No regression observed on a APL platform. Change-Id: I322a25a8b608d7fe98bec626c6696e723357a9d2 Signed-off-by: Shaunak Saha <shaunak.saha@intel.com> Reviewed-on: https://review.coreboot.org/19375 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
74 lines
1.8 KiB
C
74 lines
1.8 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2016 Intel Corporation.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <console/console.h>
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#include <delay.h>
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#include <fsp/util.h>
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#include <intelblocks/pmclib.h>
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#include <reset.h>
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#include <soc/heci.h>
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#include <soc/pm.h>
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#include <timer.h>
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#define CSE_WAIT_MAX_MS 1000
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void do_global_reset(void)
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{
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pmc_global_reset_enable(1);
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hard_reset();
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}
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void soc_reset_prepare(enum reset_type reset_type)
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{
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struct stopwatch sw;
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/*
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* If CSE state is something else than 'normal', it is probably in some
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* recovery state. In this case there is no point in waiting for it to
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* get ready so we cross fingers and reset.
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*/
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if (!heci_cse_normal()) {
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printk(BIOS_DEBUG, "CSE is not in normal state, resetting\n");
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return;
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}
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/* Reset if CSE is ready */
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if (heci_cse_done())
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return;
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printk(BIOS_SPEW, "CSE is not yet ready, waiting\n");
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stopwatch_init_msecs_expire(&sw, CSE_WAIT_MAX_MS);
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while (!heci_cse_done()) {
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if (stopwatch_expired(&sw)) {
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printk(BIOS_SPEW, "CSE timed out. Resetting\n");
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return;
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}
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mdelay(1);
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}
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printk(BIOS_SPEW, "CSE took %lu ms\n", stopwatch_duration_msecs(&sw));
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}
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void chipset_handle_reset(uint32_t status)
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{
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switch (status) {
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case FSP_STATUS_RESET_REQUIRED_5: /* Global Reset */
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global_reset();
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break;
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default:
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printk(BIOS_ERR, "unhandled reset type %x\n", status);
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die("unknown reset type");
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break;
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}
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}
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